Complete the Identity $\frac { 1 + \tan ^ { 2 } x } { \tan ^ { 2 } x }$

Multiple Choice

Complete the identity.
-The expression $\frac { 1 + \tan ^ { 2 } x } { \tan ^ { 2 } x }$
is to be the left hand side of an equation that is an identity. Which one of the following four expressions can be u: the right hand side of the equation to complete the identity?

A) $- \cos ^ { 2 } x$
B) $\sec ^ { 2 } x$
C) $\csc ^ { 2 } x$
D) $\tan ^ { 2 } x$